This is an Archangel conversion stock for the Ruger 10/22 in desert tan, made by Pro Mag. This carbon fiber filled polymer stock is easily installed on any Ruger 1022 firearms. This is a drop-in kit that requires no gun smithing and will turn any Ruger 10/22 into an AR-15 look-alike. The stock system will work with bull barrel, the muzzle device will not work with bull barrels.